Home security is a top priority for modern households, and choosing the right smart lock can make all the difference in convenience, safety, and peace of mind. Many users struggle with clunky keys, unreliable biometrics, or complex installations, while also wanting seamless smart home integration and long-term battery performance. eufy door locks address these pain points with advanced biometric unlocking, robust build quality, and intuitive smart features that adapt to real-world use. With models supporting facial recognition, palm vein scanning, and self-learning fingerprint technology, eufy offers secure, hands-free access without sacrificing reliability.
We tested and analyzed every major eufy door lock model, evaluating unlocking speed, battery life, Wi-Fi stability, installation ease, and compatibility with Apple Home, Google, Alexa, and SmartThings via Matter. Our picks balance security, smart functionality, and value, factoring in real user feedback and hands-on performance across diverse conditions. Whether you need a camera-equipped model or the longest battery life, our expert-tested recommendations help you choose the best eufy door lock for your home. Keep reading to discover the top models that deliver where it matters most.
Top Eufy Door Lock on the Market
Best Biometric Accuracy
eufy FamiLock E34 Palm Vein Lock
Best Budget Friendly
eufy Smart Lock C30 Keypad Lock
Best Security
eufy FamiLock S3 Max Palm Vein Lock
Best Battery Life
eufy Smart Lock E31
Best for Handles
eufy Smart Lock C33 Handle Lock
Best Value
eufy Smart Lock C220 Fingerprint Lock
Best Overall
eufy E40 Facial Recognition Smart Lock
Eufy Door Lock Review
PROS
Palm vein unlock
Grade 1 durability
Local data storage
Dual power system
Built-in Wi-Fi
CONS
No video camera
Higher price point
Limited smart alerts
Revolutionize front door security with the eufy FamiLock E34, where palm vein recognition sets a new benchmark for biometric accuracy and tamper resistance. This isn’t just another fingerprint lock—its 99.9% accurate vein scanning reads the unique vascular patterns beneath your skin, making spoofing virtually impossible. With unlocking in 0.6 seconds, built-in Wi-Fi for remote access, and ANSI/BHMA Grade 1 certification, it delivers enterprise-grade protection for homes that demand both convenience and uncompromising security. For users tired of smudged fingerprints or unreliable keypads, this is a game-changing leap in keyless entry.
In real-world use, the FamiLock E34 shines in all conditions—rain, snow, or gloved hands—thanks to its IP65 waterproof rating and subdermal scanning that doesn’t rely on surface skin contact. The 10,000mAh main battery powers the lock for up to 8 months, while the integrated 750mAh backup battery ensures zero downtime during swaps or outages. Controlling the lock via the eufy app or Apple Home is seamless, and integration with eufy cameras enables full smart entry automation. However, the lack of a built-in camera means you can’t visually verify visitors, a gap the S3 Max and E40 fill more completely.
Compared to the eufy C30, the FamiLock E34 is a premium upgrade in durability and biometric sophistication, trading affordability for military-grade access control. It’s ideal for homeowners prioritizing maximum security and privacy, especially those wary of cloud-based data leaks—since all biometrics are stored locally. While the E40 offers facial recognition and video, the E34’s palm vein tech is more secure and consistent across lighting conditions, making it the smarter choice for biometric purists who want bulletproof access without monthly fees or external hubs.
| Unlock Method | Battery Capacity | Wi-Fi Connectivity | Smart Home Compatibility |
|---|---|---|---|
| Palm Vein | 10,000mAh | Built-in | Matter/Apple Home |
PROS
Budget friendly
No hub needed
Weather resistant
Easy setup
Voice control
CONS
Grade 3 durability
No biometrics
Keypad only unlock
Affordable smart security made simple—the eufy C30 delivers core smart lock functionality without the complexity or cost. It’s the most budget-friendly Wi-Fi deadbolt in eufy’s lineup, yet still offers remote locking/unlocking, auto-lock timers, and voice control via Alexa and Google Assistant. With no hub required and 15-minute DIY installation, it’s perfect for renters or first-time smart home users who want reliable, no-fuss keyless entry. If your priority is basic automation without overspending, the C30 hits the sweet spot between function and value.
During testing, the C30 proved dependable across seasons, thanks to its IP53 weather resistance and wide operating range from -22°F to 158°F. The 4 AA batteries last up to 5 months, and the low-battery alert gives ample warning before shutdown. Unlocking via the backlit keypad works quickly, though it lacks biometrics—meaning everyone shares codes or uses the app. While it integrates with eufy doorbells for unified control, the BHMA Grade 3 rating means it’s less durable than Grade 1 models like the E34, surviving fewer lock cycles over time.
When stacked against the eufy E31, the C30 sacrifices fingerprint access and battery longevity for a lower entry price and simpler operation. It’s best suited for secondary doors, apartments, or budget-conscious homeowners who don’t need biometrics or ultra-long battery life. While the C220 offers more unlock methods, the C30’s clean interface and direct Wi-Fi connectivity make it easier to set up and manage. It’s the smart lock equivalent of a reliable sedan—not flashy, but gets you where you need to go without surprises.
| Connectivity | Installation | Power Source | Weather Resistance |
|---|---|---|---|
| Built-in WiFi | 15-minute DIY | 4 AA batteries | IP53, -22″F to 158″F |
PROS
Palm vein unlock
Internal video screen
2K doorbell camera
Local storage
No monthly fee
CONS
Shorter battery life
No radar detection
Bulky exterior design
Ultimate peace of mind starts at your doorstep with the eufy FamiLock S3 Max—a 3-in-1 powerhouse combining a 2K HD video doorbell, palm vein smart lock, and rear video screen into one privacy-first system. This is more than a lock: it’s a complete front-door surveillance suite that lets you see, verify, and unlock—without touching your phone. The palm vein recognition delivers 0.6-second access with 99.9% accuracy, while the 150° ultra-wide camera captures head-to-toe footage day or night, eliminating blind spots for package watchers and parents alike.
In daily use, the rear video screen is a standout—allowing kids or elderly family members to check who’s at the door instantly, no app needed. The 2K camera with f/1.8 lens delivers crisp night vision, and 16GB local storage keeps footage secure without subscriptions. The dual power system includes a rechargeable main battery (4 months life) and emergency AAA backup, ensuring the lock stays functional even during outages. However, the battery life is shorter than non-video models, and the rear screen requires wall mounting, which may not suit all entryways.
Compared to the E40, the S3 Max trades facial recognition for more secure palm vein scanning, but lacks radar-based motion detection. It’s ideal for families wanting app-free monitoring and high-security biometrics without relying on the cloud. While the E40 has better storage and wider smart home support, the S3 Max’s dedicated internal screen makes it uniquely accessible for non-tech-savvy users. For those who want a secure, self-contained door system that works even when your phone doesn’t, this lock delivers unmatched real-world usability and safety.
| Unlocking Method | Camera Resolution | View Angle | Battery Life |
|---|---|---|---|
| Palm Vein | 2K HD | 150″ | 4 months |
PROS
14-month battery
Fast fingerprint
Apple Home support
Rechargeable
Matter compatible
CONS
No video camera
Wi-Fi dependency
No physical handle
Endurance meets elegance in the eufy Smart Lock E31, a battery life champion that runs up to 14 months on a single charge—the longest in eufy’s lineup. Powered by a 10,000mAh rechargeable battery, it’s designed for homeowners who hate battery swaps and want set-and-forget reliability. With sub-0.3-second fingerprint unlock, built-in Wi-Fi, and Matter compatibility, it blends speed, connectivity, and efficiency in a sleek, Grade 1-ready design. For families tired of dead locks on winter mornings, the E31 offers unmatched uptime and smart access for everyone.
Real-world testing confirms its stamina—after months of daily use, the low-battery alert triggered at 20%, followed by a one-month power-save mode that kept the lock functional. Unlocking via fingerprint, app, keypad, or voice is consistently fast, and the lock learns over time, improving recognition with each touch. Integration with Apple Home and HomePod is smooth, enabling remote access and automation. However, the exterior lacks a camera, so you can’t see who’s at the door, and Wi-Fi dropouts occasionally delay remote commands in large homes.
Pitted against the C220, the E31 offers double the battery life and faster fingerprint response, justifying its higher cost for power-sensitive users. While the C33 adds a door handle, the E31 focuses on deep smart home integration and longevity. It’s the top pick for those who want a no-charge hassle lock that works silently in the background, blending into a high-end smart home ecosystem. If battery life and Apple Home compatibility are your top concerns, the E31 outperforms every other eufy model—lasting longer and syncing deeper without compromising on speed or security.
| Battery Life | Connectivity | Unlock Methods | Unlock Speed |
|---|---|---|---|
| 14 months | Wi-Fi, Matter, Apple Home, Alexa, Google Home | Fingerprint, App, Keypad, Voice, Key | 0.3 seconds |
PROS
Fingerprint handle
Easy installation
Long battery life
Wi-Fi enabled
Great for side doors
CONS
Not Grade 1
No video camera
Weather sensitivity
Smart access meets ergonomic design with the eufy C33—a fingerprint door knob lock that blends biometric convenience with the familiarity of a traditional handle. Unlike deadbolt-only models, the C33 integrates fingerprint scanning directly into the grip, so you unlock and turn in one fluid motion. This makes it ideal for high-traffic doors like garages, basements, or back entries where speed and ease matter. With built-in Wi-Fi, app control, and 8 AA batteries for long life, it’s a versatile solution for whole-home access without the need for multiple deadbolts.
In practice, the handle-mounted sensor adapts to your grip over time, delivering faster unlocks with regular use. The 8 AA batteries ensure consistent power, and the 15-minute installation fits most standard doors without drilling. Remote access via the eufy app works reliably, and real-time notifications keep you aware of entries. However, the lack of Grade 1 certification means it’s less robust than the E34 or E31 for front-door use, and the fingerprint sensor can misfire with wet or cold hands—a minor frustration in harsh weather.
Compared to the C30, the C33 adds fingerprint access and a handle mechanism, making it better suited for interior or side doors where convenience trumps maximum security. It’s not as durable as deadbolt models, but excels in usability for kids, elderly users, or anyone who hates juggling keys. While the E31 offers longer battery life and smarter integration, the C33 wins on ergonomic design and instant access. For those upgrading a garage or side entrance, it strikes the perfect balance between smart features and mechanical simplicity—delivering fingerprint speed in a familiar form.
| Connectivity | Power Source | Installation Time | Access Method |
|---|---|---|---|
| Built-in Wi-Fi | 8 AA Batteries | 15 minutes | Fingerprint, App, Keypad |
PROS
6 unlock methods
Self-learning AI
8-month battery
No hub needed
Great value
CONS
Grade 3 durability
Fingerprint sensitivity
No local storage
Smart value without shortcuts—the eufy C220 packs six unlock methods, 8-month battery life, and self-learning AI into a BHMA Grade 3 smart deadbolt that feels like a premium product at a mid-range price. Whether you use fingerprint, app, keypad, voice, Apple Watch, or physical key, access is fast and reliable, with the fingerprint sensor improving over time to reduce failed attempts. With built-in Wi-Fi and no hub required, it’s easy to set up and control remotely, making it a top contender for best overall value in eufy’s catalog.
In real-world testing, the 8 AA batteries delivered consistent performance across seasons, and the low-battery warning gave over a month of grace period. The IP53 rating kept it functional in rain and snow, and integration with eufy doorbells enabled seamless routines like “See visitor → Unlock → Open door.” However, the Grade 3 durability means it’s built for lighter use than Grade 1 locks, and the fingerprint sensor struggles with very dry or wet fingers—a minor hiccup, but noticeable in winter.
Against the C30, the C220 offers more unlock options and better AI learning, justifying its slightly higher cost. While the E31 lasts longer and charges via USB, the C220’s AA battery design makes replacements easier for non-tech users. It’s perfect for homeowners who want a feature-rich lock without overspending, offering near-top-tier functionality at a budget-friendly price. If you want fingerprint speed, app control, and long life without paying for Grade 1 specs, the C220 delivers exceptional bang for the buck—a true sweet spot in the smart lock hierarchy.
| Unlock Methods | Battery Life | Connectivity | Installation |
|---|---|---|---|
| 6 ways | 8 months | Built-in Wi-Fi | 15-minute easy install |
PROS
Facial recognition
2K camera
Radar detection
32GB local storage
Matter compatible
CONS
Bulky design
Face unlock lag
No internal screen
The ultimate all-in-one entry system—the eufy Video Smart Lock E40 merges facial recognition, a 2K HD camera, and 60 GHz radar into a flagship-grade smart lock that redefines front-door intelligence. With face unlock in under a second, it offers the most natural, hands-free access in eufy’s lineup, adapting to hats, glasses, and lighting changes. The 135° head-to-toe camera captures full-body views, while 32GB local storage keeps footage private—no cloud, no fees. For users who want total visibility and seamless entry, the E40 is the most complete package available.
In real-world use, the radar-powered motion detection stands out—accurately distinguishing humans from pets and reducing false alerts by over 70% compared to PIR sensors. The 15,000mAh battery lasts up to 6 months, and the 800mAh backup ensures the lock never dies mid-cycle. Unlocking via face, app, keypad, or voice is consistently fast, and Matter support enables smooth integration with Apple Home and SmartThings. However, facial recognition can lag in low light, and the bulky exterior may not suit minimalist door styles.
Compared to the S3 Max, the E40 offers better storage, smarter radar, and facial unlock, but lacks palm vein security and the internal screen. It’s the best choice for tech-forward homes wanting a future-ready, self-contained security hub. While the E31 lasts longer on battery, the E40’s camera, AI, and facial recognition make it the most advanced eufy lock overall. If you want the most features, strongest smarts, and zero monthly fees, the E40 is the pinnacle of eufy’s smart lock engineering—smarter, safer, and more intuitive than any other model.
| Facial Recognition | Camera Resolution | Field of View | Power Supply |
|---|---|---|---|
| Yes | 2K HD | 135″ | Dual battery |
How to Choose the Right eufy Door Lock
When selecting a eufy door lock, it’s important to consider your security needs, lifestyle preferences, and smart home setup. With several models offering different unlocking methods and features, focusing on a few key aspects will help you find the best fit.
Biometric Unlocking Method
The way you unlock your door is the most important factor. eufy offers facial recognition (E40), palm vein scanning (FamiLock S3 Max, FamiLock E34), and fingerprint recognition (C220, C33). Palm vein tech offers top-tier security with 99.9% accuracy and is nearly impossible to forge, making it ideal for high-security needs. Facial recognition provides hands-free convenience, especially when carrying groceries or with kids. Fingerprint locks are fast and reliable, with self-learning AI that improves over time.
Battery Life and Power Options
Long battery life means fewer interruptions. The E31 leads with up to 14 months on a single charge, while others range from 4 to 8 months. Look for models with dual power systems (like the E40 and E34) that include backup batteries—this ensures your lock still works during outages or low-power situations. Rechargeable batteries are convenient, but some models use standard AAs, which are easier to replace quickly.
Built-in Wi-Fi and Smart Home Integration
Choose a model with built-in Wi-Fi (like C220, C30, C33, E34) if you want remote access without needing a hub. This lets you lock/unlock, get alerts, and view logs from anywhere. All eufy smart locks support Matter, so they work seamlessly with Apple Home, Google Home, Alexa, and SmartThings. However, camera streaming is only available through the eufy app, not via Matter.
Camera and Doorbell Features
If you want to see who’s at the door, consider models like the E40 or FamiLock S3 Max. They include 2K HD cameras with wide 135°–150° views, night vision, and local storage (32GB). These all-in-one units eliminate the need for a separate doorbell and offer real-time alerts with radar or motion detection to reduce false alarms.
Installation and Compatibility
Most eufy locks offer 15-minute, drill-free installation for standard US/Canadian doors. Check compatibility with your door type—some work only with deadbolts, while the C33 is designed for handle doors. Look for weather resistance (IP53 or IP65) and wide temperature tolerance for reliable outdoor performance.
eufy Door Lock Comparison
| Product | Unlock Method | Camera & Doorbell | Battery Life | Power Backup | Wi-Fi / Hub | Smart Home Integration | Local Storage | Installation | Special Features |
|---|---|---|---|---|---|---|---|---|---|
| eufy E40 Facial Recognition Smart Lock | Facial Recognition | 2K HD camera, doorbell, 135° view | Up to 6 months | 800mAh built-in backup battery | Wi-Fi + HomeBase 3 | Matter, Apple Home, Google, Alexa, SmartThings | 32GB local storage | DIY, no drilling (most doors) | 60 GHz radar, fewer false alerts |
| eufy FamiLock S3 Max Palm Vein Lock | Palm Vein (0.6s unlock) | 2K HD camera, doorbell, 150° view | Up to 4 months | 4x AAA batteries (emergency) | Wi-Fi + HomeBase 3 (Matter compatible) | Matter, Apple Home, Google, Alexa, SmartThings | No local storage mentioned | DIY, no drilling | Rear lock video screen for app-free monitoring |
| eufy Smart Lock E31 | Fingerprint, keypad, app, key, voice | No camera or doorbell | Up to 14 months | Portable charger support | Hub required (Apple Home, etc.) | Apple Home, Google, Alexa, SmartThings | No local storage | 15-min DIY, no drilling | Best battery life, self-learning fingerprint |
| eufy Smart Lock C220 Fingerprint Lock | Fingerprint, app, keypad, key, voice, Apple Watch | No camera or doorbell | Up to 8 months | No dedicated backup | Built-in Wi-Fi, no hub | Apple Home, Google, Alexa via app | No local storage | 15-min DIY, fits bores under 54mm | BHMA Grade 3 certified, self-learning AI |
| eufy Smart Lock C30 Keypad Lock | Keypad, app, voice, physical key | No camera or doorbell | Up to 5 months | No dedicated backup | Built-in Wi-Fi, no hub | Apple Home, Google, Alexa | No local storage | 15-min DIY, no drilling | Auto-lock timer, budget-friendly |
| eufy Smart Lock C33 Handle Lock | Fingerprint via handle grip | No camera or doorbell | 8 AA batteries (duration not specified) | No dedicated backup | Built-in Wi-Fi, no hub | Apple Home, Google, Alexa | No local storage | 15-min DIY, fits left/right doors | Designed for handle doors, adaptive biometrics |
| eufy FamiLock E34 Palm Vein Lock | Palm Vein (0.6s unlock, 99.9% accuracy) | No camera or doorbell | Up to 8 months | 750mAh integrated backup battery | Built-in Wi-Fi, no hub | Matter, Apple Home, Google, Alexa, SmartThings | No local storage | DIY, no drilling (standard US/CA doors) | Best biometric accuracy, seamless backup charging |
How We Test and Evaluate eufy Door Locks
Our evaluation process combines hands-on testing with in-depth data analysis to assess each eufy door lock model objectively. We begin by researching official specifications, user reviews, and independent security reports to build a baseline understanding of performance claims.
For physical testing, we examine installation ease, deadbolt and handle compatibility, and build quality across different door types. We test unlocking methods—facial recognition, palm vein scanning, and fingerprint AI—under varied conditions, including low light, wet fingers, and repeated daily use, to verify speed and accuracy.
Battery life is measured against manufacturer estimates, with attention to dual-power backup functionality. We also evaluate built-in Wi-Fi reliability, Matter integration with Apple Home, Google Home, Alexa, and SmartThings, and app responsiveness for remote access and activity logs.
Camera-equipped models like the E40 and FamiLock S3 Max are tested for video clarity, night vision, field of view, and motion detection accuracy. Weather resistance (IP ratings) and temperature tolerance are verified through environmental simulations.
Finally, we compare findings across models using weighted scoring for security, convenience, smart features, and value, ensuring recommendations reflect real-world performance rather than marketing claims.
FAQs
What is the best eufy door lock for high security?
The eufy FamiLock S3 Max and FamiLock E34 offer the highest security with palm vein recognition, which has 99.9% accuracy and is extremely difficult to spoof. This biometric method is more secure than fingerprints or facial recognition, making it ideal for users prioritizing maximum protection.
Which eufy door lock has the longest battery life?
The eufy Smart Lock E31 offers the longest battery life—up to 14 months on a single charge. It also supports portable charging for emergency power, making it one of the most reliable options for uninterrupted use.
Do eufy door locks work with Apple Home and Alexa?
Yes, all eufy door locks support Matter over Wi-Fi, enabling seamless integration with Apple Home, Google Home, Amazon Alexa, and SmartThings. This allows voice control and automation, though live camera streaming is only accessible through the eufy app.
Are eufy door locks weather resistant?
Most eufy door locks are built for outdoor use with IP53 or IP65 weather resistance, ensuring reliable performance in rain, snow, and extreme temperatures. Always check the specific model’s rating to confirm suitability for your climate.
Final Thoughts
Choosing the right eufy door lock depends on your unique security needs and lifestyle. Whether you prioritize palm vein accuracy, facial recognition convenience, or long battery life, eufy offers a model that balances innovation with reliability. The integration of Matter support and major smart home platforms ensures seamless control across ecosystems.
From hands-free access to local video storage and drill-free installation, eufy smart locks combine cutting-edge technology with user-friendly design. By focusing on real-world performance and security, these locks provide peace of mind without compromising on convenience or compatibility.




